vap intubation Preventing Ventilator Associated Pneumonia in hospitals Screening for ventilator associated pneumonia infection through a breath test VAP Bundle Ventilator Associated Pneumonia Ventilator Associated Pneumonia ( VAP) is a lung infection that occurs in patients who are on mechanical ventilation for more than 48 hours. A VAP bundle is a set of Ventilator associated pneumonia: pathobiological heterogeneity and diagnostic challenges Nature Communications